The use of personal digital assistants (PDAs) by undergraduates is becoming popular. PDAs provide access to email and text messaging, global positioning programs, web browsers and touchscreens, making them easy for students to access information on the go. PDA use, however, may be limited by the undergraduates because of their computer self-efficacy (CSE) or how they perceived the use of the PDAs to be easy. Therefore, the study surveyed (CSE) and perceived ease of use of PDA for academic activities by undergraduates of University of Ibadan, Nigeria.